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Magnetic and optical properties of virgin arc furnace grown MgO crystals
- Source :
-
Journal of Crystal Growth . Jan2012, Vol. 339 Issue 1, p70-74. 5p. - Publication Year :
- 2012
-
Abstract
- Abstract: Transition metal ions (Mn2+, Cr3+, Fe2+/3+, V2+) as substitutional impurities in cubic crystals play an important role due to their influence on the magneto-optical properties of the virgin crystals. The optical and magnetic properties of commercial MgO(001) single crystals were investigated. The PL spectra of 3d impurity ions (Cr3+ and V2+) show narrow zero phonon lines with decay times in the range of milliseconds and a broad multiphonon sideband decaying in microseconds. The EPR study exhibits hyperfine components corresponding to Mn atoms and to V atoms located in orthorhombic symmetry. The intensity change of the EPR and PL spectra as well as the variation of the decay time with temperature can be explained by electron-spin lattice relaxation due to the Raman process. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00220248
- Volume :
- 339
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Crystal Growth
- Publication Type :
- Academic Journal
- Accession number :
- 70158781
- Full Text :
- https://doi.org/10.1016/j.jcrysgro.2011.11.067